These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Melon: "How dare you drink any juice other than mine?" Kakeru: "Ahhh, you want me to 'drink' you, then?"
Cargo Ship — Putting aside the "these girls are actually soda cans" aspect, Kakeru has flirted with a vending machine. More than once. Then there was the chair incident.